Permutation-lock



(No Model.)

J. B. MILLER.

PERMUTATION LOCK.

Patented Feb. 10,1891.

mlulqylml@ E n UNITED STATES i ATENT OFFICE.

JAMES B. MILLER, OF KENT, OHIO.

PiERMUTATloN-LOCK.

SPECIFICATION forming part of Letters Patent N0. 446,071, dated February10, 1891. l

Serial No. 353,570. (No model- T0 all whmn t may concern:

Be it known that I, JAMES B. MILLER, of Kent, in the county of Portageand State of Ohio, have invented certain new and useful Improvements inPemnutation-Locks5 and I do hereby declare the following to be a full,clear, and eXact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in permutation-locks of the varietykno wn as the Douds lock,7 shown and described in United States LettersPatent No. 396,273, of January 15, 1889. and to which reference ishereby made, the object being to adapt the lock to drawers, small doors,and other purposes.

In the accompanying drawings, Figures 1 and 2 are plans with thecovering of the cas ing removed, showing dierent working positions. Fig.3 is a plan with the vibrating lever and bolt-shifting device removed.Fig. 4 is an enlarged elevation in section. Fig. 5 is an enlargedperspective View of the boltshifting device detached. Fig. 6 is anenlarged plan of the cam-disk hub.

A represents the casing of the lock, the same having a removable covera. y

A represents the wood-work of, for instance, the door or the drawer, towhich the lock is attached.

B is the bolt, having a shoulder l) and having a projecting pin ormember b.

O is a vibrating lever, pivoted at O and having a pin c, adapted toengage shoulderb of the bolt. This pinV c is also adapted to engage thecam D of the cam-disk D. I will remark that two pins maybe provided forthe purpose, one short pin for engaging shoulder l) and one longer pinfor engaging cam D', but I prefer the construction shown, where one pinserves for both purposes. The hub of the cani-disk is bored to receivespindle E with an easy lit. The spindle on the outer end thereof isprovided with a thumb-nut E for operating the same. The spindle is alsoprovided inside the lock with a lateral pin e, and the hub of thecam-disk is provided with notches d for engaging the protruding ends ofthis pin, whereby the cam-disk may be ro- On this spintated byoscillating the spindle.

dle is mounted loosely the bolt-shifter, comprising sleeve F, having alateral arm F. This arm has a slot f', adapted to engage pin or member bof the bolt. The inner end of the sleeve is provided with notches f,adapted to engage pin e of the spindle. With the spindle in positionthrust inward, so that pin e engages notches d of the cani-disk, thelatter may be rotated on its axis in the one direction or the other tooperate the vibrating lever, so that a person knowing the combination ofthe lock may eventually swing the lever to the one side out of the wayof the bolt, after which, by drawing the spindle outward, pin e isdisengaged from notches CZ and enters notches f of the bolt-shifter,thereby locking the latter with the spindle, after which, and by meansof member b of the bolt operating in' slot f of the bolt-shifter, thebolt` may be withdrawn and afterward shot in, unlocking or locking thedoor or drawer. The door or drawer having been locked by the meansaforesaid, the spindle is again returned to its inward position andturned in the one direction or the other to return the vibrating spindleto its position, locking the bolt. The thumb-knobE,in addition to itstwo functions already mentioned, may also serve as ay pull for openingthe drawer or door, and this lock is well adapted to drawers and smalldoors-- such, for inst-ance, as cupboard-doors, doors of sideboards anddesks-in fact, may be used for a great variety of purposes where a smalllock is wanted.

Vhat I claim is- In permutation-locks of the variety indicated, thecombination, with a bolt, a vibrating lever, and a cam-bearing disk, ofa boltshifter and a spindle having end movement and adapted to act-natethe cam-disk or the bolt-shiftericcording to the position ot thespindle, substantially as set forth.

In testimony whereof I sign this specification, in the presence of twowitnesses, this 7th day of March, 1890.

JAMES B. MILLER.

Witnesses:

C. H. DORER, WARD HOOVER.

SSI

